Daily GLOWBUGS
Digest: V1 #12
via AB4EL Web Digests @ SunSITE
Purpose: building and operating vacuum tube-based QRP rigs
Subject: glowbugs V1 #12
glowbugs Monday, April 21 1997 Volume 01 : Number 012
Date: Sun, 20 Apr 1997 09:52:09 +0000
From: "Brian Carling (Radio G3XLQ / AF4K)" <bry@mnsinc.com>
Subject: Re: 300 watts out on 40m
On 19 Apr 97 at 19:10, Mike Toneri spoke about Re: 300 watts out on
40m and said:
>Bry How about if I just switch the Viking 500 to 7050
> or better still, use the Thunderbolt? 73...Mike VE3FGU
YES, Mike - THAT is what we need, or maybe just call some of those VE
ops on the phone and askthem to QSY above 7070!
(grin!)
********************************************************
*** 73 from Radio AF4K / G3XLQ in Gaithersburg, MD USA *
** E-mail to: bry@mnsinc.com *
*** See the great ham radio resources at: *
** http://www.mnsinc.com/bry/ *
********************************************************
Date: Sun, 20 Apr 1997 11:14:13 -0700 (PDT)
From: "Adam, KD6POC" <kd6poc@jps.net>
Subject: 30 meters and the Eico 720
Hello Everyone,
Has anybody out there ever converted an Eico 720 to 30 meters? I have heard
from others that it can be done, but I am looking for somebody with
experience doing this that I can ask questions of. Any takers?
Thanks,
Adam
Adam McLaughlin KD6POC
QRG: 7037 Kcs
kd6poc@jps.net
http://www.jps.net/jmclaugh
"If the front end isn't crunching, then the signal is not strong enough!"
Date: Sun, 20 Apr 1997 14:13:03 -0700
From: Gerald Caouette <ve6nap@oanet.com>
Subject: Tubes for sale
I have a quantity ( 100 ) of NOS/NIB Philips ECG - 5933 - Valves
these are the JAN number - military equivelent for an 807
I would like $6.00 US each or 4 for $20.00 US
Price includes normal packaging
but not shipping charges.
these would be extra
and of course by your choice.
Same 5 pin base as an 807
All the other specs match
Email if intrested
to
ve6nap@oanet.com
Date: Sun, 20 Apr 1997 17:09:38 -0500 (CDT)
From: mjsilva@ix.netcom.com
Subject: Socket mounting hint
Hi all,
Since the list is a little slow I thought I'd pass on a construction hint.
In trying to mount some ceramic octal sockets (retainer ring style) this
morning I found that the 1.125" hole I cut with my unibit was just a tad
too small, but the next larger size was much too big. Then I measured the
socket (novel idea!) and it really wanted a 1.150" hole. I was going to
try grinding it out, but decided to take a few swipes at it with a
deburring tool (the kind with the blade that looks like a crooked finger)
and in only a few passes I had a perfect fit. A very versatile tool
indeed! I don't know if these retainer-ring sockets will want to rotate in
their mounting holes, but it would be very easy to screw down a small tab
that would mesh into one of the recesses in the socket, holding it in
place. It may even be possible to use a ground lug, thus killing two
birds.
BTW, you can probably guess how I found out the next size was much too big.
Luckily I had another style of socket that fit *that* hole, so I suppose I
got away with one...
73,
Mike, KK6GM
Date: Sun, 20 Apr 1997 19:00:26 -0400 (EDT)
From: JOHN SEHRING <JOHN_SEHRING.parti@ecunet.org>
Subject: DRAKE PTO INTERCHANGE
To: glowbugs@www.atl.org
Sorry, but I need to ask again: Is the PTO from a Drake TR-4C
interchangeable with PTO's from R-4A, -4B, T-4X, -4XB?
Someone has mentioned that the freq range is different. The latter run
from 4.9 to 5.5 MHz.
Thanx!
-John Sehring (Sat, Apr 19, 1997 2:30 am MT @Baker, Montana) UCC WB2EQG
Date: Sun, 20 Apr 1997 20:06:51 +0000
From: "Brian Carling (Radio G3XLQ / AF4K)" <bry@mnsinc.com>
Subject: Re: Socket mounting hint
On 20 Apr 97 at 17:09, mjsilva@ix.netcom.com spoke about Socket
mounting hint and said:
> Hi all,
>
> Since the list is a little slow I thought I'd pass on a construction
> hint. In trying to mount some ceramic octal sockets (retainer ring
> style) this morning I found that the 1.125" hole I cut with my
> unibit was just a tad too small, but the next larger size was much
> too big
Say Mike, can you tell us where to buy a UNIBIT these days?
Bry
********************************************************
*** 73 from Radio AF4K / G3XLQ in Gaithersburg, MD USA *
** E-mail to: bry@mnsinc.com *
*** See the great ham radio resources at: *
** http://www.mnsinc.com/bry/ *
********************************************************
Date: Sun, 20 Apr 1997 19:15:20 -0500 (CDT)
From: mjsilva@ix.netcom.com
Subject: Unibits (was Re: Socket mounting hint)
On 04/20/97 20:06:51 Brian wrote:
>
>Say Mike, can you tell us where to buy a UNIBIT these days?
My local Home Depot has "official" Unibits up to 1/2" and 3/4", and
Greenlee Kwik-Steppers above that (the one I have goes to 1-3/8").
Otherwise, I've heard electrical supply shops carry them in one brand or
another.
73,
Mike, KK6GM
Date: Mon, 21 Apr 1997 00:19:24 +0000
From: Sandy W5TVW <ebjr@worldnet.att.net>
Subject: Re: Socket mounting hint
At 08:06 PM 4/20/97 +0000, you wrote:
>On 20 Apr 97 at 17:09, mjsilva@ix.netcom.com spoke about Socket
>mounting hint and said:
>
>> Hi all,
>>
>> Since the list is a little slow I thought I'd pass on a construction
>> hint. In trying to mount some ceramic octal sockets (retainer ring
>> style) this morning I found that the 1.125" hole I cut with my
>> unibit was just a tad too small, but the next larger size was much
>> too big
>
>Say Mike, can you tell us where to buy a UNIBIT these days?
>
>Bry
Yes! Try any MSC Supply Co. 1-800-645-7270
They are also on the web at www.mscdirect.com
They are on page 148 of their catalog #95/96
They publish a catalog that will drain your bank account if you are
a machine tool freak!
73,
E. V. Sandy Blaize, W5TVW
"Boat Anchors collected, restored, repaired, traded and used!"
417 Ridgewood Drive,
Metairie, LA., 70001
ebjr@worldnet.att.net
**Looking for: 860 tubes, WL-460 tubes**
**Butternut HF2V antenna, G-R test gear.....................***
Date: Mon, 21 Apr 1997 06:45:22 -0500
From: Kevin Pease <KPease@worldnet.att.net>
Subject: Re: DRAKE PTO INTERCHANGE
JOHN SEHRING wrote:
>
> To: glowbugs@www.atl.org
>
> Sorry, but I need to ask again: Is the PTO from a Drake TR-4C
> interchangeable with PTO's from R-4A, -4B, T-4X, -4XB?
>
> Someone has mentioned that the freq range is different. The latter run
> from 4.9 to 5.5 MHz.
>
> Thanx!
>
> -John Sehring (Sat, Apr 19, 1997 2:30 am MT @Baker, Montana) UCC WB2EQG
I beleive that the frequency range is the same however the R4-C has a
solid
state PTO while the esrly ones are vacume tube. So the R4-C might be
aaptable the the early ones but not the other way.
Date: Mon, 21 Apr 1997 12:59:41 GMT
From: wrt@eskimo.com (Bill Turner)
Subject: Re: Socket mounting hint
On Sun, 20 Apr 1997 17:09:38 -0500 (CDT), mjsilva@ix.netcom.com wrote:
>Hi all,
>
>Since the list is a little slow I thought I'd pass on a construction =
hint. =20
>In trying to mount some ceramic octal sockets (retainer ring style) this=
=20
>morning I found that the 1.125" hole I cut with my unibit was just a tad=
=20
>too small, but the next larger size was much too big. Then I measured =
the=20
>socket (novel idea!) and it really wanted a 1.150" hole.=20
<snip>
<><><><><><><><><><><><><><><><><><><><><><><><><><><>
Another possibility for next time - there are octal sockets available
which don't require cutting the large hole at all. They are used for
relays but they fit octal tubes just fine. They mount on top of the
surface with a couple of 6-32 screws.
The only possible drawback is they would add about 1/2 inch of lead
length to your connections, which might be important for cathode or
screen bypass grounding at VHF. At HF there should be no problem.
Any distributor of industrial components should have them.
73, Bill W7TI
Date: Mon, 21 Apr 1997 14:53:25 -0400 (EDT)
From: leeboo@ct.net (Leon Wiltsey)
Subject: EXPERIMENTING
>To: GB
>From: leeboo@ct.net (Leon Wiltsey)
>Subject: EXPERIMENTING
>
>>To: Michael Hanz <AAFRadio@erols.com>
>>From: leeboo@ct.net (Leon Wiltsey)
>>Subject: Re: shipping costs
>>
>Hi gang
>
>Here is some pretty basic info for those who like to breadboard
>small solid state cir. ( I know solid state is a bad word)
>>>
>>>
>>
>>Working on a few projects to upgrade my 2 TUBE REGEN
>IT WILL BE SOME SORT OF A HYBRIDE TUBES AND SOLID STATE
>>
>> SPENT THE EVENING
>>WITH MY 200 ELECTRONIC PROJECT KIT THE WIFE GOT
>>FOR ME RIGHT AFTER MY STROKE FROM RADIO SHACK TO GET ME BACK
>>DOING SOME THINGS THAT NEEDED HAND TO EYE
>>COORDINATION.. IT IS A GREAT KIT A COUPLE OF DOZEN
>> RESISTERS ANOTHER DOZEN CAPS 4 TRANSISTORS A POT
>>A SPEAKER 2 SMALL TRANS AND A PLACE TO PUT 6 AAA
>> CELLS TO POWER IT AND A NICE MANUAL WITH DOZENS OF CIRCUITS.
>>>THE PARTS ARE CONNECTED BY RUNNING SMALL WIRES BETWEEN
>>SPRING CLIPS AT EACH PART. I WANTED TO BUILD A AUDIO OSC
>>FOR TESTING AUDIO STAGES, SO SPENT THE EVENING BREADBOARDING
>>A CIRCUIT. ONE TRANS AND A DOZEN OR SO PARTS, NOW THAT I
>>HAVE IT WORKING WILL DUPLICATE IT ON A SMALL PC BOARD
>>AND PUT THE WHOLE THING IN A SMALL PLASTIC BOX AND
>>I WILL HAVE A CHEEPO AUDIO OSC
>>GOOD EVENING FRIENDS
>>
>
Thank the good LORD for all that you have!!!
Leon B Wiltsey jr. (Lee)
4600 Lake Haven blvd...
Sebring fl 33872.............
68yr old retired semi disabled senior
(stroke got my balance and coordination)
formerly w4kcj & kp4ryb ( till I quite) dumb dumb
waiting for my tech+ lic to arrv 73's
play keyboard and sing
music 1920's to 60'
none of the 80'S- 90'S noise
End of glowbugs V1 #12
**********************
Created by Steve Modena, AB4EL
Comments and suggestions to modena@SunSITE.unc.edu